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W:C.Anderson(8-6) L:J.De La Rosa(13-10)
HR: COL- C.Blackmon (17) ARI- N.Reimold (1)

National League Preview from The Sports Network

Sunday, August 31 (All times Eastern)

Colorado Rockies (54-81) at Arizona Diamondbacks (56-79), 4:10 p.m.

Probable Starting Pitchers: Colorado - Jorge De La Rosa (13-9, 4.19) Arizona - Chase Anderson (7-6, 3.90)

( - If he's tired, he won't admit it.

Arizona rookie Chase Anderson has already surpassed a previous personal high in innings pitched for a season as he enters Sunday's three-game series finale with the Colorado Rockies at Chase Field.

Still, he's allowed 11 runs in seven innings in his two most recent outings, and the right-hander is not going with fatigue as an excuse.

"My arm feels good right now. That's the more frustrating thing. My arm feels good, and my velocity is good. It's pretty steady and consistent," he said. "You're going to have some struggles and rough patches. You're going to have to learn to persevere and stay even-keeled."

Anderson had a 3.16 earned run average in his initial 15 big league starts before the two-start skid, which included a 7-4 loss to San Diego last weekend in which he walked four batters and allowed five runs in five innings.

He's thrown 131 1/3 innings in the majors and Double-A this season, 23 more than any before.

He's beaten Colorado in both starts in 2014, including an Aug. 8 triumph at Chase Field and a June 3 win at Coors Field, where he outdueled Jorge De La Rosa, who'll pitch for Colorado again on Sunday.

De La Rosa, a left-hander, has a 5.16 earned run average and a 0-3 record in his last four meetings with the Diamondbacks.

In his last two starts, though, he's allowed four runs in 13 innings, including five scoreless frames against San Francisco on Tuesday before allowing a two-run homer in the sixth en route to a 3-0 loss. He subsequently bruised a thumb while at bat in the sixth, but claimed no long-term issue.

Colorado hasn't won consecutive games on the road since June. In their last 32 road games, in fact, they've won just five.

On Saturday, Matt McBride and Charlie Blackmon each hit solo home runs to back seven stellar innings from Tyler Matzek and the Rockies edged Arizona, 2-0.

McBride's second-inning home run was one of just three hits that Colorado mustered, but it was enough thanks to Matzek's dominance on the mound. The southpaw allowed just three hits and three walks over seven innings, allowing just one baserunner to reach scoring position.

Matzek (4-9) has won his last two starts following five consecutive losses.

It was another tough-luck loss for Vidal Nuno (0-4), who remains winless since moving to Arizona in a trade from the Yankees. Nuno struck out seven while yielding just a run on two hits over eight innings of work. Nuno hasn't won in 10 starts with Arizona despite compiling a respectable 3.23 ERA with the club.

08/31 10:22:11 ET